Where does “Blauhelm” come from?

Blauhelm (German) comes from German helm, from Middle High German helm, from Old High German helm, from Proto-West Germanic helm, from Proto-Germanic helmaz, from Proto-Germanic halmaz, from Proto-Indo-European ḱolh₂mos, from Proto-Indo-European ḱelh₂- — to pierce, strike; to stick; prick; stab.

Blauhelm (German): blue helmet

Definitions

  1. blue helmet

Ancestry of “Blauhelm”, step by step

Blauhelm traces back through two separate lines of ancestry.

via German helm

StepLanguageWordMeaning
1Germanhelmhelmet
2Middle High Germanhelmstalk
3Old High Germanhelmhelmet
4Proto-West Germanichelmhelmet
5Proto-Germanichelmazhelmet
6Proto-Germanichalmazhalm; stem; stalk; straw; hay
7Proto-Indo-Europeanḱolh₂mosstalk
8Proto-Indo-Europeanḱelh₂-to pierce, strike; to stick; prick; stab

via German Blau

StepLanguageWordMeaning
1GermanBlauthe colour blue; a particular tone of blue; a...
2Middle High Germanblāblue
3Old High Germanblāoblue, dark, grey; blue; yellow
4Proto-West Germanicblāublue
5Proto-Germanicblēwazblue; a dark bluish or grey colour, black
6Proto-Indo-Europeanbʰlēw-yellow, blond, grey
Every word from Proto-Indo-European ḱelh₂-